Growing oregano with Kratky hydroponics
Kratky Oregano
Oregano is the easiest of the woody Mediterranean herbs to grow in a Kratky container. It is more vigorous than thyme and much faster than rosemary.
Why it works
Oregano and the Kratky Method
Oregano (Origanum vulgare) is a spreading perennial with soft stems that turn woody with age. It roots readily, grows quickly in good light, and bounces back after cutting, so it copes with a passive container better than thyme or rosemary.
For cooking, look for Greek oregano (Origanum vulgare subsp. hirtum), which has the strong, peppery flavor most people want. Plain "oregano" seed often grows a milder plant. Like thyme, oregano does best when its stem base stays dry, which the falling Kratky level helps with.
Greekfor flavor
Getting started
Cuttings or Seed?
From a cutting (best)
A 4 inch green tip from a Greek oregano plant roots in water in about two weeks. This is the only way to be sure of the flavor.
From seed
Sow the tiny seed on the surface of a moist cube; it sprouts in about one to two weeks. Seed-grown plants vary in flavor.
Step by step
How to Grow Kratky Oregano
Choose a dark container
A quart jar or larger; oregano spreads wider than thyme.
Use clay pebbles
A free-draining medium keeps the stem base from staying wet.
Set the net pot
Fill so just the bottom of the net pot touches the solution.
Give strong light
6 to 8 hours of direct sun, or 12 to 16 hours under a grow light.
Let the level fall
The air gap keeps the roots healthy. Top up part way only when it runs low.
Harvesting
When and How to Cut Oregano
Start cutting once the plant has several stems about 4 to 6 inches long. Cut stems back by up to a third, just above a pair of leaves, and new shoots branch from there. Regular cutting keeps oregano compact instead of sprawling.
Flavor peaks just before the plant flowers, so that is the time for a bigger harvest. Oregano is one of the few herbs that tastes as good dried as fresh; see preserving your herb harvest for drying it.
dryit well
Problems
Common Kratky Oregano Problems and Uses
Oregano is forgiving, but a few problems come up often. If the stem base turns soft or brown, the crown is staying too wet: lower the level and use clay pebbles. If stems stretch long with gaps between the leaves, it needs more light. If the plant sprawls over the edge of the container, cut it back by a third; it will branch and fill in.
In the kitchen, oregano belongs with tomatoes, beans, grilled meat, pizza and anything Greek or Italian. Fresh oregano is milder than dried, so use about three times as much fresh. Its Kratky partner herb is thyme, and it is one half of the classic pairing with basil, though basil is best grown in its own container.
FAQ
Kratky Oregano Questions
Is oregano easy to grow with the Kratky method?
It is the easiest of the woody herbs: faster and more forgiving than thyme or rosemary.
Why does my oregano taste weak?
It may be a mild seed-grown type, or it isn't getting enough light. Greek oregano from a cutting, in strong light, has the best flavor.
Can oregano and thyme share a container?
Yes, they like similar conditions. Give each its own net pot. See mixing herbs in one container.
Is marjoram the same as oregano?
They are close relatives. Marjoram is sweeter and milder and grows the same way.
How long does oregano last in one container?
Many months. When it gets woody and crowded, take fresh cuttings and restart.
Should I let Kratky oregano flower?
You can, but flowering slows leaf growth and the flavor fades afterward. Pinch the flower buds off unless you want them for bees or decoration.
Can I grow oregano under a grow light only?
Yes. Give it 12 to 16 hours a day with the light close enough to keep the stems short and sturdy.
How much oregano does one plant give?
A healthy plant cut back by a third every few weeks gives a steady supply for a household, with extra to dry.
Why are the lower oregano leaves dropping?
Lower leaves fall when they are shaded by the growth above or when the plant is short of light. Cut the stems back by a third so light reaches the center, and new shoots will fill in.
Is Kratky oregano good for pizza and sauce?
Yes. Use it fresh at the end of cooking for a bright flavor, or dry a harvest for the deeper flavor most pizza and tomato sauce recipes expect.
Related Kratky Herbs
Oregano's partner herb is thyme. Basil is the other half of Italian cooking.